Combining larval parasitoids and an entomopathogenic fungus for biological control of Sitophilus granarius (Coleoptera: Curculionidae) in stored grain
Combining larval parasitoids and an entomopathogenic fungus for biological control of Sitophilus granarius (Coleoptera: Curculionidae) in stored grain
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DOI:
10.1016/j.biocontrol.2006.09.012
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发表时间:
2007-02-01
影响因子:
4.2
通讯作者:
Steenberg, Tove
中科院分区:
文献类型:
--
作者:
Hansen, Lise Stengard;Steenberg, Tove
The potential of combining different natural enemies for biological control of Sitophilus granarius (L.) in grain was investigated in a laboratory study. We compared the effect of two species of larval parasitoids, Lariophagus distinguendus Forster and Anisoptermalus carlandrae (Howard), alone or in combination with a surface treatment of the grain with the entomopathogenic fungus Beauveria bassiana (Bals.) Vuillemin against S. granarius in units containing 9 kg of wheat over a period of 26 weeks. In the untreated units, the pest population increased about 5000 times. The highest level of pest suppression (> 99.9%) was obtained in units with L. distinguendus, followed by units with A. calandrae. In units with both parasitoids and the entomopathogen, the pest suppression level was 83-98%. Although the parasitoids were negatively affected by the fungus, they still exerted some degree of control compared to the untreated units. (c) 2006 Elsevier Inc. All rights reserved.